Loom shuttle-box motion.



J. M; MARGO. LOOM HUTTLE BOX MOTION, APPLICATION FILED JULY 12, 1900.

914,739. Patented Mar. 9, 1909..

3 SHEETS-SHEET 1- rm: noxiu: rxrsns'ml, vulsumamn, n. c.

l I mm mm amen tow 1% wmmw J. M. MARCO. 1.00M SHUTTLE BOX MOTION.

APPLIQATION FILED JULY 12, 1966. Pate'nted Mar. 9,

" Patented Mar. 9, 1909. 3 BEEETS -SHEET 3.

J L M. MARCO. 1.00M SHUTTLE BOX MOTION. I APPLICATION nun JULY 12 1906UNITED STATES PATENT OFFICE.

JOHN M. MARCO, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNORTO OROMPTON &KNOWLES LOOM WORKS, A CORPORATION OF MASSACHUSETTS.

LOOM SHUTTLE-BOX MOTION.

Specification of Letters Patent.

Patented March 9, 19 09.

Application filed July 12, 1906. Serial No. 325,749.

T 0 all whom it may concern:

Be it known that 1, JOHN M. lVlAROO, Zen of the United States, residingat ,delphia, in the county of Philadelphia and State of Pennsylvania,have invented certain new and useful Improvements in Loom Shuttie-BoxMotions, of which the following is a specification.

My invention relates to shuttle box motion for looms, and particularlyto that class of shuttle box motions shown and described in U. S.Letters Patent, No. 364,697, in which a driven master wheel or gearoperates one or more mutilated pinions through sliding teeth, themovement of which is controlled by a pattern surface. The rotation ofthe mutilated pinion or pinions raises and lowers the shuttle boxes inthe well known way.

The object of my invention is to combine with the shed forming patternmechanism of a loom, located on the-head or the upper part of the loom,and preferably to combine with a dobby mechanism, a shuttle box motionof the class referred to, located adjacent the shed forming patternmechanism, and in substantially the same horizontal plane as the head ofthe loom, and having the master wheel or gear operated by the drivingmech anism of the shed forming pattern mechanism, to operate through amutilated pinion a shaft carrying an eccentric or crank, connected withand adapted to raise and lower the shuttle boxes, according to theindications of the pattern surface which controls the movement of thesliding teeth of the mu tilated pinion, and also to provide means forpositively holding the sliding teeth in alinement with the master gear,during each half rotation of the driven mutilated pinion, so that theteeth of the master gear and the driven pinion cannot get out of time.

My invention consists in certain novel features of construction of myimprovements as will be hereinafter fully described.

I have only shown in the drawings de tached parts .of a loom, and inthis instance arts of a dobby mechanism as the shed forming patternmechanism, and a shuttle box motion of the class referred to, combinedtherewith, and located adjacent thereto, and connections therefrom tothe drop shuttle boxes, two in number, sufficient to enable thoseskilled in the art to understand a citiconstruction and operation of myimprovements.

Referring to the drawingsz Figure 1 is an end and partial sectional viewof a loom frame, and two drop shuttle boxes, a dobby cylinder, and ashuttle box motion, and connections therefrom to the shuttle boxes. Fig.2 shows, on an enlarged scale, the shuttle box motion, looking in thedirection of arrow a, Fig. 1 Fig. 3 is a section, on line 3, 3, Fig. 2,looking in the direction of arrow 1), same figure. Fig. 4 is a section,on line 4, 4, Fig. 2, looking in the direction of arrow 1), same figure.Fig. 5 is a detached sectional view, on line 5, 5, Fig. 2, looking inthe direction of arrow 0, same figure. Fig. 6 corresponds to Fig. 5,butshows some of the parts in a different position. Fig. 7 is a section,on line 7, 7, Fig. 2, looking in the direction of arrow (1, same figure,and, Fig. 8 is a section, on line 8, 8, Fig. 2, looking in the directionof arrow d, same figure.

In the accompanying loom side or end frame, pivotally mounted at 3,

drawings, 1 is the 2 is the lay-sword, 4 is the lay, 5 the drop shuttleboxes 7, in this instance two in number, are supported on the upper endof a vertically moving rod 8, which is guided at its lower end, and hassecured thereto a collar 9, carrying a stud, not shown, connected withthe give-way mechanism 10, in the or dinary way, which mechanism ispivotally attached at its lower end to the shuttle box lever 11,fulcrumed at 12 to the loom side. On the upper end of the loom side orframe 1 are in this instancedobby frames or stands 13, and 13, havingbearings for the shaft 14, on which is fast the dobby harness patternchain cylinder 15 of the dobby, forming in this instance the shedforming mechanism. On the outer end of the shaft '14 is fast a worm gear16, which meshes with and is driven by a worm 17, fast on a worm shaft18. The worm shaft 18 is driven in the ordinary way from the crank shaft6, through intermediate gears, shown by broken lines in Fig. 1. Securedto the dobby frame 13 are stands 19, and 19, see Fig. 2, on which aresupported the several parts of the box motion. The worm shaft 18, seeFig. 3, has fast thereon a gear 20, which meshes with the and drives agear 21 fast on a shaft 22 'tionary stud 34.

mounted in suitable bearings 22 on the stands 19, and 19, see Fig. 2. Onthe shaft 22 is fast a mutilated gear 23, having teeth on only a portionof its periphery, and termed a master gear, see Patent No. 364,697,above referred to. The master gear 23 has a continuous rotary motion,and meshes with and operates a mutilated pinion 24, fast on a shaft 25which is mounted in suitable bearings 25 on the stands 19 and 19, seeFig. 2. A pinion 26 is also fast on the shaft 25, and meshes with anddrives a gear 27, which is connected with the box pattern chain cylinder28, which is loosely mounted on the shaft 22, chain 29, made up of linksand bars, rolls and tubes, shown in Fig. 2.

Extending over the pattern chain 29 is the indicating lever 30, see Fig.3, the hub 30 of which is pivotally mounted on a transverse rod 31secured in bearings 31 on the stands 19 and 19, see Fig. 2. Theindicating lever 30 is connected by a link 32 with one arm of an angleor bell crank lever 33, having its hub 33 pivotally mounted on a sta-The other arm of the angle or bell crank lever 33 has a slot therein,shown by broken lines in Fig. 2, to receive a set screw 35, see Figs. 5and 6, on a collar 36 fast on a longitudinally moving rod 37 which ismounted in bearings on the stands 19 and 19.- A helically coiledexpansion spring 38 encircles the longitudinally moving rod 37, andbeans at one end against the collar 36, and at its other end against astationary part of the frame, and acts to yieldingly hold said rod 37,against the movement of the angle or bell crank lever 33, and to returnsaid rod to its normal position. Fast on the longitudinally moving rod37 is secured, in this instance by a set screw 39, the hub 40 of a lever40 which has a yoke shaped end, to engage an annular groove 41 in thehub 41, splined on and movable in the direction of the length of theshaft 42, mounted in suitable bearings 42 on the stands 19 and 19, seeFig. 2. The hub 41 has extending out therefrom, and parallel to theshaft 42, two arms 41", which extend loosely in recesses in theperiphery of the mutilated pinion 43 fast on the shaft 42. The arms 41may be attached at their inner ends to a disk or collar 44, loose on theshaft 42. A helically coiled expansion spring 42 encircles the shaft 42,and bears at one end against the collar or disk 44, and at its other endagainst a stationary part, and acts to yieldingly hold the hub or clutchmember 41 in its outward and inoperative position. The hub 41 has anotch 41 in its inner end, see Fig. 7, to receive a projection 40 on thele ver 40, as shown in Figs. 5 and 6, which acts as a lock, for holdingand locking the sliding hub in position after a partial rotationthereof. The hub 41 has a cam surface on its outer end, and a notch 41therein, to receive a projection 45 on the stand 19, see Fig. 8, whichacts to lock or hold said hub, as shown in Fig. 5, when it is shifted inthe opposite direction. One of the arms 41 has a projection 41 thereon,forming a tooth, to be moved into and out of alinement with the teeth onthe master gear 23, and the other arm 41 has a projection or tooth 41thereon, out of alinement with the tooth 41', and adapted to be 'movedinto and out of alinement with the teeth on the master gear 23 and causethe revolution of the pinion 43 and the shaft 42, in the usual and wellknown way, and as fully described in Patent, No. 364,697. A secondprojection 41 on the same arm 41 as the tooth 41, forms a second tooth,which is so shaped and located, relatively to the tooth 41 that it willcome into the path of the teeth of the master gear 23, when the tooth41' is in the ath of said gear 23 and tooth 41 is out o the path of saidgear 23, so that it is impossible to get the master gear 23 and thedriven pinion 43 out of time. The hub 43 see Fig. 6 of the mutilatedpinion 43, has thereon two oppositely extending projections 43", seeFig. 4, which engage curved portions 23 on the master gear 23, see Fig.2, and form dwell ortions to hold the mutilated pinion 43, after eachpartial revolution thereof. The mutilated pinion 24 also has projections24 thereon, to en gage the projections 23 on the master gear 23, andform dwell portions to hold the pinion 24 after each partial revolutionthereof. On the shaft 42 is secured, by a set screw 46, in this instancethe hub 47 of an eccentric 47, around which extends a ring 48, to whichis pivotally attached, by a stud 49, the upper end of the connector orrod 50 to the shuttle box lever 11.

From the above description in connection with the drawings, theoperation of the box motion will be readily understood by those skilledin the art.

When a blank on the pattern chain comes under the lever 30, the shaft 37is shifted longitudinally to the right, Fig. 6, through the spring 38,and causes the projection 41 to come in the path of the teeth of themaster gear 23, as shown in Fig. 2, and the rota tion of the shaft 42 iscaused by the combination of the sliding teeth on the hub 41, with themutilated pinion 43, which combination causes the operation of the shaft42 by the master gear 23, which has a continuous ro- V a arms 41 inoperative connection with the master gear 23 until the notch 41 in thecam surface comes into position to receive the stop 45.

When a ball on the pattern chain comes under the lever 30, the tooth 41is moved into operative position for the master gear 28, through thebell crank lever 33 moving the rod 37 and lever 40. Then the tooth 4 isin operative position, the tooth 41" will be in a position to beoperated by the teeth of the master gear 23, when the hub 41 has beenrotated through half its circumference, and the tooth 41 will remain inthis operative position until the projection orstop 4( on the lever 40enters the notch 41 in the inner end of the hub 41. The teeth 41 and 41on one arm 41 are for the same purpose as the cam surface on the outerend of the hub 41, and serve to hold the mutilated pinion 43 inoperative connection with the master gear 23 at all times, until it hasfully finished its half rotations.

It will be understood that the details of construction of myimprovements may be varied if desired. I prefer to use a dobby, but afancy head of the Knowles class may be used as the shed forming patternmechanism, and more than two shuttle boxes may be used.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is 1. A drop shuttle box motion of the classdescribed, having a sliding hub with a cam shaped surface on one end, toengage a sta tionary projection, and a notch on said end to receive saidprojection, and said hub carrying projections forming sliding teeth,arranged opposite each other, and out of line with each other, and alsohaving a second projection in line with one of the sliding teeth, andsaid hub having a notch in its other end to receive a projection on thelever which moves said hub, and said lever.

2. In a drop shuttle box motion located adjacent to the shed formingpattern mechanism, the combination with a rotatable master gear havingteeth on apart of its periphcry, of two mutilated pinions, one mutilatedpinion driven by said master gear, and connections from said mutilatedpinion to the shuttle boxes, and a second mutilated pinion also drivenby said master gear, and connections from said second mutilated pinionto the box pattern'chain, to drive said box pattern chain from saidsecond mutilated pinion.

3. A drop shuttle box motion located adj acent to the shed formingpattern mechanism, comprising a mutilated master gear operated by thedriving mechanism of the shed forming pattern mechanism, a patternchain, con nections intermediate said master gear and said pattern chainto rotate said chain, and

an indicator lever for said pattern chain, and connections intermediatesaid master gear and the shuttle boxes, said connections operatedthrough the movement of a pattern indicator lever of the box patternchain.

4. A drop shuttle box motion, located adjacent the shed forming patternmechanism, and comprising a mutilated master gear, operated by thedriving mechanism of the shed forming pattern mechanism, a patternchain, connections intermediate said master gear and said pattern chainto rotate said chain, an indicator lever for said pattern chain,connections from said lever to a sliding hub, and said hub having a camsurface on one end to engage a stationary projection, and having a notchor recess to receive said projection.

5. A drop shuttle box motion, located adjacent the shed forming patternmechanism, and comprising a mutilated master gear, operated by thedriving mechanism of the shed forming pattern mechanism, a patternchain, connections intermediate said master gear and said pattern chainto rotate said chain, an indicator lever for said pattern chain, connections from said lever to a sliding hub, and said hub havingprojections thereon forming sliding teeth to be moved into and out ofposition in a mutilated pinion, and said mutilated pinion, and saidsliding teeth to be engaged by said master gear and cause the rotationof said mutilated pinion, and the rotation of an eccentric to raise andlower the shuttle boxes, and means for locking said hub in its twoextreme rotative positions.

6. In a loom, the combination with the shed forming pattern mechanism,of a shuttle box motion located adjacent the shed forming patternmechanism, and comprising a mutilated master gear, operated by thedriving mechanism of the shed forming pattern mechanism, a patternchain, connections intermediate said master gear and said pattern chainto rotate said chain, an indicator lever for said pattern chain,connections from said lever to a sliding hub, and said hub havingprojections thereon forming sliding teeth to be moved into and out ofposition in a mutilated pinion, and said mutilated pinion, and saidteeth to be engaged by said master gear and cause the rotation of saidmutilated pinion, and the rotation of an eccentric to raise and lowerthe shuttle boxes, and said eccentric and means for locking said hub inits two extreme rotative positions.

7. In a loom, the combination with by pattern chain cylinder, andmechanism for rotating the same, of a drop shuttle box motion locatedadjacent the shed forming pattern mechanism, and comprising a mutilatedmaster gear, operated by the driving mechanism of the shed formingpattern mechanism, a pattern chain, connections intermediate said mastergear and said pattern a dobchain to rotate said chain, an indicatorlever ion, and the rotation of an eccentric to raise for said patternchain, connections from said and lower the shuttle boXes, and saideccen- 10 lever to a sliding hub, and. said hub having trio and meansfor looking said hub in its tWo projections thereon forming slidingteeth to extreme rotative positions.

5 be moved into and out of position in a muti- JOHN M. MARCO.

lated pinion, and said mutilated pinion, and Witnesses: said teeth to beengaged by said master gear WM. T. FLETCHER,

and cause the rotation of said mutilated pin- E. A. WHITMORE.

